Class: SpringSet

Inherits:
Object show all
Defined in:
lib/spring_set.rb

Instance Method Summary collapse

Constructor Details

#initialize(*springs) ⇒ SpringSet

Returns a new instance of SpringSet.



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# File 'lib/spring_set.rb', line 13

def initialize(*springs)
  @springs = {}
  springs.flatten.each do |s|
    @springs[s.object_id] = {
      :spring => s,
      :num_collecter => s.num_collecter,
      :size => s.size
    }
    s.add_observer(self)
  end
end

Instance Method Details

#each ⇒ Object 



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# File 'lib/spring_set.rb', line 66

def each
  @springs.values.each { |v| yield(v[:spring]) }
end

#get_most_busy ⇒ Object 



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# File 'lib/spring_set.rb', line 38

def get_most_busy
  calc_stat(:num_collecter) { |a, b| a > b }
end

#get_most_empty ⇒ Object 



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# File 'lib/spring_set.rb', line 46

def get_most_empty
  calc_stat(:size) { |a, b| a < b }
end

#get_most_free ⇒ Object 



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# File 'lib/spring_set.rb', line 34

def get_most_free
  calc_stat(:num_collecter) { |a, b| a < b }
end

#get_most_full ⇒ Object 



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# File 'lib/spring_set.rb', line 42

def get_most_full
  calc_stat(:size) { |a, b| a > b }
end

#num_collecter(spring_id) ⇒ Object 



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# File 'lib/spring_set.rb', line 56

def num_collecter(spring_id)
  @springs[spring_id][:num_collecter]
end

#size ⇒ Object Also known as: length 



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# File 'lib/spring_set.rb', line 50

def size
  @springs.size
end

#spring_size(spring_id) ⇒ Object Also known as: spring_length 



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# File 'lib/spring_set.rb', line 60

def spring_size(spring_id)
  @springs[spring_id][:size]
end

#update(spring_id, msg, collecter_id) ⇒ Object 



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# File 'lib/spring_set.rb', line 25

def update(spring_id, msg, collecter_id)
  case msg
  when Spring::SIGN_UP
    @springs[spring_id][:num_collecter] += 1
  when Spring::GET
    @springs[spring_id][:size] -= 1 if @springs[spring_id][:size] > 0
  end
end